The cleaning and maintenance can play a detergent, rust, rust, acid effect, removal rate can reach more than 85%.

此项清洗保养可以起到去垢、去锈、防锈、防酸的功效，除垢率可达85%以上。

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The results show that the removal rate of its COD and colourity are 88.3% and 98% respectively, arsenic content can reach undetected level under the optimum conditions.

结果表明，在适宜条件下，渗滤液COD和色度的去除率可分别达到88.3%和98% ，砷可达到检不出水平。

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The results show that the removal rate of its COD and colourity are 88.3% and 98% respectively, arsenic content can reach undetected level under the optimum conditions.

结果表明，在适宜条件下，渗滤液COD和色度的去除率可分别达到88.3%和98% ，砷可达到检不出水平。

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